Hiking-cultural trail retracing two thousand years of history of transit among the Reto-romancia, Walser and Lombardo cultures, between North and South of the Alps. From Chiavenna to Thusis (Switzerland) an ancient horse trail of the Spluga Pass, strategic pass since the most remote times, which can be carried out in stages, 2 to 5 days, thanks to hikes suitable for anyone and stopping over in comfortable hotels or B&Bs along the trail.